Nouns denoting natural phenomena
- hot weather
- a period of unusually high temperatures
- harvest
- the consequence of an effort or activity
- tossup
- an unpredictable phenomenon
- delta wave
- the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz)
- overpressure
- a transient air pressure greater than the surrounding atmospheric pressure
- afterglow
- a glow sometimes seen in the sky after sunset
- systolic pressure
- the blood pressure (as measured by a sphygmomanometer) during the contraction of the left ventricle of the heart
- placebo effect
- any effect that seems to be a consequence of administering a placebo; the change is usually beneficial and is assumed result from the person's faith in the treatment or preconceptions about what the experimental drug was supposed to do; pharmacologists were the first to talk about placebo effects but now the idea has been generalized to many situations having nothing to do with drugs
- brisance
- the shattering or crushing effect of a sudden release of energy as in an explosion
- ultraviolet spectrum
- the spectrum of ultraviolet radiation
- myonecrosis
- localized death of muscle cell fibers
- shaft
- a column of light (as from a beacon)
- aerodynamic force
- forces acting on airfoils in motion relative to the air (or other gaseous fluids)
- capacitance
- an electrical phenomenon whereby an electric charge is stored
- overstrain
- too much strain
- radiant energy
- energy that is transmitted in the form of (electromagnetic) radiation; energy that exists in the absence of matter
- depolarisation
- a loss of polarity or polarization
- weak interaction
- (physics) an interaction between elementary particles involving neutrinos or antineutrinos that is responsible for certain kinds of radioactive decay; mediated by intermediate vector bosons
- catabatic wind
- a wind caused by the downward motion of cold air
- sympathetic vibration
- (physics) vibration produced by resonance
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